/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.jasper.runtime;

import org.apache.jasper.compiler.Localizer;

import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.jsp.HttpJspPage;
import java.io.IOException;

/**
 * This is the super class of all JSP-generated servlets.
 *
 * @author Anil K. Vijendran
 */
public abstract class HttpJspBase extends HttpServlet implements HttpJspPage {

	private static final long serialVersionUID = 1L;

	protected HttpJspBase() {
	}

	@Override
	public final void init(ServletConfig config)
			throws ServletException {
		super.init(config);
		jspInit();
		_jspInit();
	}

	@Override
	public String getServletInfo() {
		return Localizer.getMessage("jsp.engine.info");
	}

	@Override
	public final void destroy() {
		jspDestroy();
		_jspDestroy();
	}

	/**
	 * Entry point into service.
	 */
	@Override
	public final void service(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		_jspService(request, response);
	}

	@Override
	public void jspInit() {
	}

	public void _jspInit() {
	}

	@Override
	public void jspDestroy() {
	}

	protected void _jspDestroy() {
	}

	@Override
	public abstract void _jspService(HttpServletRequest request,
	                                 HttpServletResponse response)
			throws ServletException, IOException;
}
